Oh, and who's your favorite MM11 boss? Assuming you guys played the game, if you haven't I'd recommend it.
Now we're talking! Favorite mm11 boss is Torch Man. I am way more partial to Mega Man 1-6 and 9/10 though. However I would say that 8 is excellent and mega man 7 is great, but not quite the masterpieces that the 8 bit style games are. I also really love mega man x-x5, that series really took a big nose dive after mega man x5. Mega Man Zero series is also very good, 1-3 at least, 4 is a major let down in all phases in terms of level design, music, etc...
I think we could spread this across the entire series. Who is your favorite robot master and why is it Shadow Man or Pharaoh Man? What is your favorite song and please don't say wily 2-1, mine is probably Gemini Man from the 1-6 but I'd say that my overall favorite might be We are the Robots which is wily 9-2, though Solar Mans theme sounds like legit Psychobilly music. Favorite Weapon is probably Wheel Cutter from mm10, that weapon is just fun af to use, 1-6 is probably Top Spin just because it's fun, not always practical but oh well. As far as the X series I'd say my favorite Robot Master is Neon Tiger because I like to think of myself as a cat. Favorite theme is tougher in the X series, though I think it's probably Jet Stingray from X4. Favorite weapon in X series is tougher because of the fact that you can charge them up, being able to air dash into charged up flame stag into air dash is an elite level of awesomeness, though.
Favorite game is probably Mega Man 9 followed by Mega Man 3. The next choice is very difficult as I think considering Mega Man 10 has 9 different playmodes (easy/normal/hard and mega/proto/bass), but you would have to select the normal mega mode for discussion to be fair. As far as the X series is concerned, Mega Man X2 might be the best game ever made, period. So that's an easy one for me, followed by X and X4, X3 and X5. X6-X8 never happened.
I actually have a page on smashboards called the Nebraska Mega Man Power Rankings and it is where me and some other Nebraska players ranked mega man games and discussed them very thoroughly, however time has shown me the light on mega man 6 which I severly underappreciated in years past. This was due to the slide in mega man 6 being so horrible. It still is, but you can't deny it's gameplay and overall design. Plus Rush Jet is so much fun to use.